Posters

Smartphone-attached photokeratoscope screening for irregular corneas

Poster Details

First Author: A.Kanellopoulos GREECE

Co Author(s):    N. Tomaras   E. Young   K. Hatch              

Abstract Details

Purpose:

A low-cost, smartphone-based photokeratoscope captured images that allowed detection of approximately 60% of cases of keratoconus, even among individuals without formal ophthalmology training, suggesting that this instrument may prove useful as a screening tool in populations with minimal access to formal optometric or ophthalmologic evaluation.

Setting:

Laservision.gr clinical and research eye institute, Athens, Greece

Methods:

In total, 74 eyes were imaged with the study device. These images and a duplicate set with reference rings were reviewed by a blinded group of 2 cornea specialists, 2 ophthalmology residents, and 4 individuals without prior training in ophthalmology. Reviewers filled out a survey identifying images as either normal or KCN, and survey results were assessed for percent KCN accurately identified.

Results:

With the images alone, cornea specialists correctly identified KCN in 48%, and improved to 63% with reference rings. Residents accurately identified KCN in 50% of eyes without and 49% with rings. Individuals without training identified KCN in 44% without rings and 57% when rings were present.

Conclusions:

With rates of detection of KCN near 60% among laypeople, comparable to cornea specialists, this low-cost photokeratoscope demonstrates promise for screening in the general population.

Financial Disclosure:

None